How young is too young?

I was a girlie girl growing up and loved all things ruffly, glittery and pink. Now with a 7yr old daughter of my own we have fun painting our nails, doing her hair and on special occasions she wears a bit of makeup. I have taken her to a nail salon to get her nails painted before but it seems that is just the beginning for a lot of moms.

With a new trend of little girls getting full facials, eyebrow waxes and even bikini waxes how young is too young? Do you think its to each his own or should their be minimum ages for treatments?